202 



SHOKTEE COXTEIBUTIOXS TO GENERAL GEOLOGY, 1921. 



and would not be mentioned in the present 

 connection if it were not for the necessity of 

 showing that the con'chition of the Texas 

 Comanche series with (he Lower Cretaceous 

 of Europe is incorrect and can not hope to be 

 ultimately accei)ted, and because this problem 

 is so intimately bound up with the age of the 

 Cheyenne sandstone. 



If there is no marine Lower Cretaceous in 

 Kansas, as I contend, our ideas of the secpience 

 of events from late Lower Cretaceous time into 

 the I'pper Cretaceous require to 1)e very greatly 

 modilied. 



With ivgurd to Tweiihofers proposal to refer 

 the Mentor and Dakota of central Kansas to 

 the Comanche, all that 1 can say is that while 

 he and before him Cragin and others have 

 wT-itten about the Dakota flora, this term is 

 altogether meaningless stratigraphically, ex- 

 cept that it denotes in a most general way a 

 change in facies between Lowei' and Upper 

 Cretaceous floi-as. The ilora of tlie Cheyenne 

 sandstone, and I presume tliat in tlie Mentor 

 formation as well, is no more like that of the 

 Woodbine sand than the Woodbine flora is like 

 that of the several formations of the Montana 

 group, and the reference of the Dakota sand- 

 stone — that is, the post-Mentor Dakota sand- 

 stone ol ccnti-.-d Kansas — to the Lowei' Cre- 

 taceous if coiTcct woulfi of necessity carry 

 with it the Bingen sand of Ai'kansas, the Tus- 

 caloosa formation of Alal)ania, the Black Creek 

 formation of the Carolinas, and the Magothy 

 formation of New Jersey and l\Iaryland, against 

 whose correlation witli the Senonian of Europe 

 by paleo/.oologists I have ])een arguing for 

 years, with not very great success. 



LOCALITIES. 



All llie localities fi-om which fossil plants 

 were collected in the Ciieyenne sandstone are 

 in the immediate vicinity of Belvidere, Kiowa 

 County, Kans. (See PI. XLVI.) I give be- 

 low a transcription of (he locality numbers, 

 with tlie names of the collectors and dates, 

 taken from the I'nited States Geological Sur- 

 vey's records. There appears to be some con- 

 fusion in tiie two collections numbered 2224, 

 nor do 1 have locality numbers for the material 

 collected by Ward and A'aughan in 1896. 

 These defects in the record are immaterial, 

 however, for there is no doubt that all the ma- 

 terial studied came fi-om the Chevenne sand- 



stone in this immediate region. Many of the 

 numbers are du])hcations of identical outcrops 

 and ai'e given only as a niattei- of record. 



77;?. I'.lark hills near lielvifiere; colloctod liy Hill, 

 Gould, and Shattuck. 1S04. 



2l'17. ( >sage Rock at Belvidere. from Xos. 1 and 2 nf Hill's 

 sec-tiou; collected by (>. 1^. ("ain, ].'i!)7. 



221s. One and one-half miles northwest of Belvidere, 

 from Xo. H of Hill's section; collected by Ward and Gould. 

 1807. 



2219. Same as 773. .Stokes Hill. 100 yards south of the 

 National Corral; collected by Ward and Gould, 1S97. 



2220. Stokes Hill, the most northeasterlyof Hill's locali- 

 ties; collected by Gould. 1S97. 



2221. Thompson Creek near the Ihime. 2 miles north- 

 west of Belvidere; collected by Ward and Gould, 1897. 



2222. Champion (WiKlcat) Draw, thrcc-iourths mile 

 south of Behddere; collected liy Ward, (iould. and White, 

 1897. 



2223. Same locality and collectors as 2222, from the 

 ■ ' T-anphier shales. 



2221. Near Medicine Lodtje River. 2 miles west of Bel- 

 videre (orijiinal locality of Ward and Vaun;han in 18!)(>); 

 collected by Ward and Goidd. 



2224. Champion (Wildcati I>raw. riudit (cast 1 branch, in 

 " Lanphier shales," half a mile south of Bihddere; col- 

 lected by \\'ard and Gould, 1897. 



222."i. ( )ne mile southwest of Belvidere, in a draw (" Lan- 

 |>hier shales" i; collected by Ward and Gould, 1897. 



222(i. About 24 miles due west of Belvidere (fern lied of 

 1896); collected by Ward and Gould, 1897. 



2227. Hills between Sprintr Creek and Soldier, 4 miles 

 northeast of Belvidere; collected by Ward and Gould, 1897. 



2228. Champion ("Wildcat: Draw, ripht (cast) branch, 

 ■Lanphier shales," half a mile south of Belvidere: col- 

 lected by Ward and Gould, 1897. 



2229. Left bank of middle branch of Champion (Wild- 

 cat) Draw, half a mile .south of Belvidere; collected by 

 Ward and Gould, 1897. 



2230. Draws north of Belvidere ( " Lan])hicr shales"); 

 collected liy Ward and Gould, 1.S97. 



2231 . Rijrht bank of middle branch of Champion (Wild- 

 cat) Draw, half a mile south of Belvidere; collected by 

 Ward and Gould, 1897. 



2232. Osatre Rock at Belvidere, "Stokes sandstone'' 

 below the so-called Champion shell betl; collected by 

 Ward and Gould, 1897. 



2233. First draw west of Chamjiion (Wildcat) Draw, 

 half a mile south of Belvidere; collected liy Ward and 

 Gould, 1897. 



740.5. Wildcat lU-aw, near Belvidere; collected by 

 W. T. Lee, 1919. 



740G. Osage Rock, near Belvidere; collected by W. T. 

 Lee. 1919. 



CHARACTER OF THE FLORA. 



The flora of the Cheyenne sandstone as dis- 

 closed in the present study numbers but 23 

 species. It comprises four ferns representing 

 the families Polypodiaceae and Gleicheniaceae, 

 and all four are representatives of widely 



